Russian jet dangerously buzzes US jet

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Spain's airport authority, AENA, said the government's Committee on Civil Aviation Incidents and Accidents would look into the incident.

A Barcelona airport AENA spokeswoman told CNN that the UTair pilot had been cleared to land but exercised his authority to abort.

She said the Aerolineas Argentinas flight also had permission to taxi across the runway. She did not comment on the timing of its maneuver.

The spokeswoman said there had been no impact danger and the perspective of the video did not show that there was plenty of space between the two aircraft.

It was "not about a collision or a possible collision," she said, adding that neither airline had submitted a complaint over the incident.

CNN aviation analyst Miles O'Brien said that, according to plans of the airport, the two planes had been about half a mile apart at the time of the incident.

"That said, you see they had to perform a go-around and if you've ever been in an airliner that has to performed a go-around, it gets your attention," he said.

O'Brien said air crews on the ground should check to see if the flightpath is clear before crossing a runway as part of standard protocols.

"What we can say here is the system did ultimately work -- the last resort that is, but there was a series of mistakes... that led to this."

Aerolineas Argentinas in Madrid referred calls to its headquarters in Buenos Aires, where CNN's efforts to reach anyone at the press office, through the switchboard and three direct lines, were unsuccessful after repeated attempts.

In a statement, UTair said the pilot of its flight from Moscow to Barcelona had been following the instructions of Barcelona airport dispatchers.

"While lowering on a final approach track the commander found an obstacle on the runway (the aircraft of another airlines was crossing it)," it said.